rs777216483

Positions:

chr21-33288199-G-A

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The ENST00000290200.7(IL10RB):c.742G>A(p.Val248Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000936 in 1,613,880 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000092 ( 1 hom. )

Consequence

IL10RB
ENST00000290200.7 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: -1.21

Variant links:

Genes affected

IL10RB (HGNC:5965): (interleukin 10 receptor subunit beta) The protein encoded by this gene belongs to the cytokine receptor family. It is an accessory chain essential for the active interleukin 10 receptor complex. Coexpression of this and IL10RA proteins has been shown to be required for IL10-induced signal transduction. This gene and three other interferon receptor genes, IFAR2, IFNAR1, and IFNGR2, form a class II cytokine receptor gene cluster located in a small region on chromosome 21. [provided by RefSeq, Jul 2008]

IL10RB links:

IFNAR2-IL10RB (HGNC:):

IFNAR2-IL10RB links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.006522715).

BP6

Variant 21-33288199-G-A is Benign according to our data. Variant chr21-33288199-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 576932.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Likely_benign=1}. Variant chr21-33288199-G-A is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000112 (17/152122) while in subpopulation SAS AF= 0.00166 (8/4830). AF 95% confidence interval is 0.000824. There are 0 homozygotes in gnomad4. There are 12 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
IL10RB	NM_000628.5 linkuse as main transcript	c.742G>A	p.Val248Ile	missense_variant	6/7	ENST00000290200.7	NP_000619.3
IFNAR2-IL10RB	NM_001414505.1 linkuse as main transcript	c.1402G>A	p.Val468Ile	missense_variant	12/13		NP_001401434.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
IL10RB	ENST00000290200.7 linkuse as main transcript	c.742G>A	p.Val248Ile	missense_variant	6/7	1	NM_000628.5	ENSP00000290200	P2

Frequencies

GnomAD3 genomes

AF:

0.000112

AC:

AN:

152122

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000589

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00166

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000131

AC:

AN:

251492

Hom.:

AF XY:

0.000191

AC XY:

AN XY:

135920

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000867

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.000882

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000917

AC:

134

AN:

1461758

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

727192

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000671

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000754

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000531

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.000112

AC:

AN:

152122

Hom.:

Cov.:

AF XY:

0.000162

AC XY:

AN XY:

74302

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000589

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00166

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.0000491

ExAC

AF:

0.000140

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Inflammatory bowel disease 25

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jun 13, 2022

This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 248 of the IL10RB protein (p.Val248Ile). This variant is present in population databases (rs777216483, gnomAD 0.09%). This variant has not been reported in the literature in individuals affected with IL10RB-related conditions. ClinVar contains an entry for this variant (Variation ID: 576932). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The isoleucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 05, 2022

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.062

BayesDel_addAF

Benign

-0.66

BayesDel_noAF

Benign

-0.79

CADD

Benign

0.0050

DANN

Benign

0.85

DEOGEN2

Benign

0.053

T;T;T

Eigen

Benign

-1.9

Eigen_PC

Benign

-1.9

FATHMM_MKL

Benign

0.0037

LIST_S2

Benign

0.32

T;T;T

M_CAP

Benign

0.0050

MetaRNN

Benign

0.0065

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-1.1

N;.;.

MutationTaster

Benign

1.0

PROVEAN

Benign

0.46

N;.;.

REVEL

Benign

0.025

Sift

Benign

1.0

T;.;.

Sift4G

Benign

1.0

T;.;.

Polyphen

0.0010

B;.;.

Vest4

0.045

MVP

0.099

MPC

0.26

ClinPred

0.037

GERP RS

-8.2

Varity_R

0.024

gMVP

0.13

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over